Linux Red Hat - Subscription-manager

Hi, I am totally new to Linux, I have installed the operating system, and now I am required to register on the Red Hat Subscription Manager, but it gives me the following error "unable to reach server at subscription.rhn.redhat.com:443/subscription. Can someone please help me figure out how to resolve this problem.7

Hello
I am working on Red Hat 6.4 Enterprise Server.Here commands systemctl and systemd are not working.Error comes command not found.I am using service command in place of systemctl to start,stop,enable and disable service etc.
example service httpd start
Also I am not able to install any software or package by using yum command.Whenever I try to install a package through yum the below error comes
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Repository 'repository_url': Error parsing config: Error parsing "baseurl = 'repository_url'": URL must be http, ftp, file or https not ""
Setting up Install Process
Nothing to do
Please advice some other commands or what to do.Regards Najam

I am newly installed Redhat 7 , and try to yum package , but got the following error ,

I do not have paid for Redhat subscription , would advise if I want to yum package , I have to pay for Redhat ? if not , what can I do ? thanks

#yum install NetworkManager


the system is not registered to Redhat Subscription Management. you can use subscription-manager to register.

There are no enabled repos.

Run "yum repolist all" to see the repos you have

You can enable repos with yum-config-manager --enable <repo>

Hi, I downloaded an ISO linux file for my Vmware it was with a read me file that show the login details into the OS. Now have finished the installation of the ISO on my Vmware but the problem I have is it not accepting the login details that came with the ISO I download.
this was the login that came with the ISO:

standard user:
username: user
password: password

administrative user:
username: root
password: password
It not accepting any of it I want to know if I did something wrong or there is master login deatils I can use to get to the desktop.
Am a real newbie this is my first time of dealing with Linux your answers will be appreciated a lot. Thanks.

is there a way via terminal to reset the username and password for my router?
i have recently started working with the terminal and in order to use ssh im going to need to download some software and enter the username and password for the router which i havent a clue what it is. im not sure i ever set the username and password on it????

if i could re make the username and password for my router i would then be able to get this ssh working.

or is this not possible?

Hi, does anyone know the username and password of the live Cylon linux? The Operation System locked the screen and now it requires a username and password, I honestly dont know what it is. I booted in live from a USB drive. Ill appreciate any help to solve this little problem, cheers for all Linux users!

Wow, I got my new Linux pc yesterday and it's very very fast. It's faster than my new MacBook.
So I go to the user account which also says administrator so I'm presuming that's the root owner?????? and I typed in my name and changed the password. The guy who sold it to me named the password user and the computer user. Yet when I go to the terminal my username and computer is still called user@user
How do I change the root password and computer name?

Wow, I got my new Linux pc yesterday and it's very very fast. It's faster than my new MacBook.
So I go to the user account which also says administrator so I'm presuming that's the root owner?????? and I typed in my name and changed the password. The guy who sold it to me named the password user and the computer user. Yet when I go to the terminal my username and computer is still called user@user
How do I change the root password and computer name?

hi sir.need ur help. a desktop comp is endorsed to me with Linux system. the previous user failed to give the password for localhost root and im not able to login to the system. I really need to backup the files and programs installed and afraid to reboot since our database program is installed in the pc. would really appreciate your help.ty

hi there,
i am using linux mint 17.1 cinnamon and find that it is awesome ... however i did update each time that the update manager asked me to ... it was fine until about the 10th time after which insync manager stopped working all of sudden ... some apps like jitsi just failed to install ... also oflate the same happened to my update manager .....please someone help..
thanks in advance ...